Many ions are being introduced with food.Again with the "perhaps I missed something" disclaimer, but I also don't see how this DSR method addresses the Cl- / SO4-- imbalance that is implicit in using only chloride salts for maintaining calcium and magnesium, and specifically only adding sulfate when making up new water. And, yes, I'm aware of this page, which really doesn't address this specific issue at all. I'm very curious what the specific major ion values were on Glenn's Triton test, and the S in particular. I would expect that it would be relatively quite low, given the information available to me. Not that there is necessarily any evidence that there is anything at all wrong with that.
I have established SO4 (can) become to high in some cases, so i decide to primary use MgCl2 to topup my Mg.
Just to be clear!
I am not chasing NSW, but i am trying to learn more about the bounderies corals thrive, without counting every grain of salt.
With over 200 living receptors in my tank i have the ability to step in when action needed to be taken.
Should the problem arise that SO4 will affect the corals there is always a way of measuring it with a ICP labtest and supplementing it manually.
The latest DSR calculator has a tab for sulphate correction.
With SO4 up 300ppm higher and lower (than 904ppm) there seems to be no corals negatively affected.
My tank is now 11y with no periodic WC and i seldom supplemented SO4
Maybe once or twice a year i feel like using MgSO4 instead of MgCl2 but that's it....
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